0FiebddlmZddlmZmZddlmZedZedZddZ dS)) annotations)IterableIterator)TypeVarXYx Iterable[X]xpfp Iterable[Y]leftreturn Iterator[Y]c#Kt||}d}d|}}|D]B}|s:|||kr2|} t|\}}n#t$rd}YnwxYw|s|,||k2| VCdS)aVForward-fill interpolation Parameters ---------- x: Output x series. Must be monotonic ascending. xp: Input x series. Must be strictly monotonic ascending. fp: Input y series. If it contains more or less elements than xp, the two series will be clipped to the shortest one (like in :func:`zip`). left: Value to yield for x < xp[0] Yields ------ Forward-fill interpolated elements from fp matching x Examples -------- >>> list(ffill([0.5, 2.2, 2.3, 4.5], [1, 2, 3], "abc", "-")) ["-", "b", "b", "c"] FNT)zipnext StopIteration) r r r ritxp_donexp1fp1xifp0s 5lib/python3.11/site-packages/distributed/itertools.pyffillr s0 RBGTC s{bCiiC 88SS       s{bCii  s= A  A N) r r r r r r rrrr) __future__rcollections.abcrrtypingrrrrrr"sy""""""........ GCLL GCLL""""""r!